/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/ThyssenKruppRelegation.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 07:54:22,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 07:54:22,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 07:54:22,970 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 07:54:22,971 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 07:54:22,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 07:54:22,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 07:54:22,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 07:54:22,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 07:54:22,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 07:54:22,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 07:54:22,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 07:54:22,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 07:54:22,997 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 07:54:22,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 07:54:23,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 07:54:23,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 07:54:23,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 07:54:23,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 07:54:23,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 07:54:23,012 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 07:54:23,013 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 07:54:23,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 07:54:23,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 07:54:23,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-25 07:54:23,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 07:54:23,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 07:54:23,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 07:54:23,028 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 07:54:23,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 07:54:23,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 07:54:23,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 07:54:23,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 07:54:23,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 07:54:23,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 07:54:23,030 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 07:54:23,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedVariableLbe.epf [2021-03-25 07:54:23,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 07:54:23,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 07:54:23,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 07:54:23,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 07:54:23,071 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 07:54:23,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 07:54:23,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 07:54:23,071 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 07:54:23,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 07:54:23,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 07:54:23,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 07:54:23,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 07:54:23,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 07:54:23,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 07:54:23,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 07:54:23,073 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 07:54:23,073 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 07:54:23,073 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 07:54:23,073 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 07:54:23,074 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 07:54:23,074 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 07:54:23,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:54:23,074 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 07:54:23,074 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 07:54:23,074 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 07:54:23,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 07:54:23,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 07:54:23,075 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 07:54:23,075 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 07:54:23,075 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 07:54:23,075 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 07:54:23,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 07:54:23,395 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 07:54:23,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 07:54:23,398 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 07:54:23,399 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 07:54:23,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThyssenKruppRelegation.bpl [2021-03-25 07:54:23,400 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThyssenKruppRelegation.bpl' [2021-03-25 07:54:23,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 07:54:23,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 07:54:23,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 07:54:23,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 07:54:23,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 07:54:23,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 07:54:23,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 07:54:23,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 07:54:23,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 07:54:23,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... [2021-03-25 07:54:23,464 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 07:54:23,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 07:54:23,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 07:54:23,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 07:54:23,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:54:23,519 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-03-25 07:54:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-25 07:54:23,520 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-25 07:54:23,520 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-25 07:54:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 07:54:23,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 07:54:23,521 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 07:54:23,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 07:54:23,593 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 07:54:23,594 INFO L202 PluginConnector]: Adding new model ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:54:23 BoogieIcfgContainer [2021-03-25 07:54:23,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 07:54:23,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 07:54:23,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 07:54:23,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 07:54:23,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:23" (1/2) ... [2021-03-25 07:54:23,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519541ad and model type ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:54:23, skipping insertion in model container [2021-03-25 07:54:23,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:54:23" (2/2) ... [2021-03-25 07:54:23,600 INFO L111 eAbstractionObserver]: Analyzing ICFG ThyssenKruppRelegation.bpl [2021-03-25 07:54:23,604 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 07:54:23,607 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 07:54:23,608 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 07:54:23,652 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-03-25 07:54:23,668 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-25 07:54:23,699 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 07:54:23,700 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 07:54:23,700 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 07:54:23,700 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 07:54:23,700 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 07:54:23,700 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 07:54:23,700 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 07:54:23,700 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 07:54:23,709 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 11 places, 7 transitions, 22 flow [2021-03-25 07:54:23,724 INFO L129 PetriNetUnfolder]: 0/6 cut-off events. [2021-03-25 07:54:23,725 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:54:23,726 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11 conditions, 6 events. 0/6 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 3 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-03-25 07:54:23,727 INFO L82 GeneralOperation]: Start removeDead. Operand has 11 places, 7 transitions, 22 flow [2021-03-25 07:54:23,729 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 7 places, 3 transitions, 9 flow [2021-03-25 07:54:23,731 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:23,738 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 7 places, 3 transitions, 9 flow [2021-03-25 07:54:23,747 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 7 places, 3 transitions, 9 flow [2021-03-25 07:54:23,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 7 places, 3 transitions, 9 flow [2021-03-25 07:54:23,750 INFO L129 PetriNetUnfolder]: 0/3 cut-off events. [2021-03-25 07:54:23,750 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:54:23,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7 conditions, 3 events. 0/3 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 0/3 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-03-25 07:54:23,751 INFO L142 LiptonReduction]: Number of co-enabled transitions 2 [2021-03-25 07:54:23,753 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:23,753 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:23,755 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 25 [2021-03-25 07:54:23,765 INFO L129 PetriNetUnfolder]: 0/2 cut-off events. [2021-03-25 07:54:23,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:54:23,765 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-25 07:54:23,766 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1] [2021-03-25 07:54:23,766 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-25 07:54:23,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-25 07:54:23,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1401, now seen corresponding path program 1 times [2021-03-25 07:54:23,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-25 07:54:23,779 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077807441] [2021-03-25 07:54:23,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-25 07:54:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 07:54:23,837 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 07:54:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-25 07:54:23,844 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-25 07:54:23,857 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-25 07:54:23,858 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-03-25 07:54:23,858 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-25 07:54:23,867 INFO L202 PluginConnector]: Adding new model ThyssenKruppRelegation.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 07:54:23 BasicIcfg [2021-03-25 07:54:23,867 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 07:54:23,869 INFO L168 Benchmark]: Toolchain (without parser) took 439.71 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 229.3 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.0 GB. [2021-03-25 07:54:23,870 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:54:23,871 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.03 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 235.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 07:54:23,872 INFO L168 Benchmark]: Boogie Preprocessor took 13.18 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.2 MB in the end (delta: 758.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:54:23,873 INFO L168 Benchmark]: RCFGBuilder took 129.51 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 227.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. [2021-03-25 07:54:23,874 INFO L168 Benchmark]: TraceAbstraction took 271.31 ms. Allocated memory is still 255.9 MB. Free memory was 226.8 MB in the beginning and 229.3 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:54:23,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.03 ms. Allocated memory is still 255.9 MB. Free memory was 236.3 MB in the beginning and 235.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.18 ms. Allocated memory is still 255.9 MB. Free memory was 235.0 MB in the beginning and 234.2 MB in the end (delta: 758.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 129.51 ms. Allocated memory is still 255.9 MB. Free memory was 234.0 MB in the beginning and 227.2 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 271.31 ms. Allocated memory is still 255.9 MB. Free memory was 226.8 MB in the beginning and 229.3 MB in the end (delta: -2.6 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.7ms, 7 PlacesBefore, 7 PlacesAfterwards, 3 TransitionsBefore, 3 TransitionsAfterwards, 2 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - CounterExampleResult [Line: 16]: assertion can be violated assertion can be violated We found a FailurePath: [L15] FORK 0 fork 1 foo(); [L16] 0 assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 2.0ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 164.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 62.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2.5ms SsaConstructionTime, 8.0ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...